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| Criterion |  Operations Fishbone Diagram |  Operations Fault Tree Analysis |  Knowledge Modeling Knowledge Mapping |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | Knowledge Mapping makes knowledge, gaps, and transfer paths visible across a field. It fits when expertise should not just exist but also be findable and transferable. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 30-60 min | 2-6 h | 1-3 h | 2-4 h |
Participantsdifferent | 2-8 | 3-8 | 3-12 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Knowledge Map, Critical Knowledge Areas, Transfer Plan | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Root causeQualityOperations | RiskRoot causeSafety | KnowledgeMappingRisk | Root causeSafetyIncident |